1 <?php

     2 

     3 /*

     4  * This file is part of SwiftMailer.

     5  * (c) 2004-2009 Chris Corbyn

     6  *

     7  * For the full copyright and license information, please view the LICENSE

     8  * file that was distributed with this source code.

     9  */

    10 

    11 require_once dirname(__FILE__) . '/../HeaderEncoder.php';

    12 require_once dirname(__FILE__) . '/../../Encoder/QpEncoder.php';

    13 require_once dirname(__FILE__) . '/../../CharacterStream.php';

    14 

    15 /**

    16  * Handles Quoted Printable (Q) Header Encoding in Swift Mailer.

    17  * @package Swift

    18  * @subpackage Mime

    19  * @author Chris Corbyn

    20  */

    21 class Swift_Mime_HeaderEncoder_QpHeaderEncoder extends Swift_Encoder_QpEncoder

    22   implements Swift_Mime_HeaderEncoder

    23 {

    24 

    25   /**

    26    * Creates a new QpHeaderEncoder for the given CharacterStream.

    27    * @param Swift_CharacterStream $charStream to use for reading characters

    28    */

    29   public function __construct(Swift_CharacterStream $charStream)

    30   {

    31     parent::__construct($charStream);

    32     // Reset the safeMap

    33     $this->_safeMap=array();

    34     foreach (array_merge(

    35       range(0x61, 0x7A), range(0x41, 0x5A),

    36       range(0x30, 0x39), array(0x20, 0x21, 0x2A, 0x2B, 0x2D, 0x2F)

    37       ) as $byte)

    38     {

    39       $this->_safeMap[$byte] = chr($byte);

    40     }

    41   }

    42 

    43   /**

    44    * Get the name of this encoding scheme.

    45    * Returns the string 'Q'.

    46    * @return string

    47    */

    48   public function getName()

    49   {

    50     return 'Q';

    51   }

    52 

    53   /**

    54    * Takes an unencoded string and produces a Q encoded string from it.

    55    * @param string $string to encode

    56    * @param int $firstLineOffset, optional

    57    * @param int $maxLineLength, optional, 0 indicates the default of 76 chars

    58    * @return string

    59    */

    60   public function encodeString($string, $firstLineOffset = 0,

    61     $maxLineLength = 0)

    62   {

    63     return str_replace(array(' ', '=20', "=\r\n"), array('_', '_', "\r\n"),

    64       parent::encodeString($string, $firstLineOffset, $maxLineLength)

    65       );

    66   }

    67 

    68 }